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Minor enhancements to <C-i>/<C-o>

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This commit is contained in:
Kris Maglione
2011-08-09 14:50:51 -04:00
parent 9df1f7b6cf
commit 9bdb4411af
3 changed files with 44 additions and 20 deletions
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30
common/content/buffer.js
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@@ -279,7 +279,7 @@ var Buffer = Module("buffer", {
localStorePrototype: memoize({
instance: {},
get jumps() [],
jumpsIndex: 0
jumpsIndex: -1
}),
/**
@@ -1268,10 +1268,12 @@ var Buffer = Module("buffer", {
* null, to not alter the horizontal scroll offset.
* @param {number|null} top The top absolute pixel offset. If
* null, to not alter the vertical scroll offset.
* @param {string} reason The reason for the scroll event. See
* {@link marks.push}. @optional
*/
scrollTo: function scrollTo(elem, left, top) {
scrollTo: function scrollTo(elem, left, top, reason) {
if (elem.ownerDocument == buffer.focusedFrame.document)
marks.push();
marks.push(reason);
if (left != null)
elem.scrollLeft = left;
@@ -1288,7 +1290,7 @@ var Buffer = Module("buffer", {
* Scrolls the currently given element horizontally.
*
* @param {Element} elem The element to scroll.
* @param {string} increment The increment by which to scroll.
* @param {string} unit The increment by which to scroll.
* Possible values are: "columns", "pages"
* @param {number} number The possibly fractional number of
* increments to scroll. Positive values scroll to the right while
@@ -1296,11 +1298,12 @@ var Buffer = Module("buffer", {
* @throws {FailedAssertion} if scrolling is not possible in the
* given direction.
*/
scrollHorizontal: function scrollHorizontal(elem, increment, number) {
scrollHorizontal: function scrollHorizontal(elem, unit, number) {
let fontSize = parseInt(util.computedStyle(elem).fontSize);
if (increment == "columns")
let increment;
if (unit == "columns")
increment = fontSize; // Good enough, I suppose.
else if (increment == "pages")
else if (unit == "pages")
increment = elem.clientWidth - fontSize;
else
throw Error();
@@ -1310,14 +1313,14 @@ var Buffer = Module("buffer", {
let left = elem.dactylScrollDestX !== undefined ? elem.dactylScrollDestX : elem.scrollLeft;
elem.dactylScrollDestX = undefined;
Buffer.scrollTo(elem, left + number * increment, null);
Buffer.scrollTo(elem, left + number * increment, null, "h-" + unit);
},
/**
* Scrolls the currently given element vertically.
*
* @param {Element} elem The element to scroll.
* @param {string} increment The increment by which to scroll.
* @param {string} unit The increment by which to scroll.
* Possible values are: "lines", "pages"
* @param {number} number The possibly fractional number of
* increments to scroll. Positive values scroll upward while
@@ -1325,11 +1328,12 @@ var Buffer = Module("buffer", {
* @throws {FailedAssertion} if scrolling is not possible in the
* given direction.
*/
scrollVertical: function scrollVertical(elem, increment, number) {
scrollVertical: function scrollVertical(elem, unit, number) {
let fontSize = parseInt(util.computedStyle(elem).lineHeight);
if (increment == "lines")
let increment;
if (unit == "lines")
increment = fontSize;
else if (increment == "pages")
else if (unit == "pages")
increment = elem.clientHeight - fontSize;
else
throw Error();
@@ -1339,7 +1343,7 @@ var Buffer = Module("buffer", {
let top = elem.dactylScrollDestY !== undefined ? elem.dactylScrollDestY : elem.scrollTop;
elem.dactylScrollDestY = undefined;
Buffer.scrollTo(elem, null, top + number * increment);
Buffer.scrollTo(elem, null, top + number * increment, "v-" + unit);
},
/**